Switching on Port 587 for Outgoing eMail

We have added port 587 to accept outgoing eMail from our customers on a number of hosts systems. Any new customers eMail clients are configured to use authenticated SMTP port 587.
 
This will start to alter the way we have processed eMail to prevent consumers computers from talking directly to inbound servers. Inbound servers will have port 25 closed or restricted to authenticated users only. All of our outbound servers support authenticated SMTP port 587 so that consumers can start to switch at any time. eMail clients like Outlook, Outlook Express, and Thunderbird should default to port 587 instead of port 25. We have on-line guides to help in the change under the “How-To Guides” on our websites.